Editor's note: Part of the CNN political fact-checking series
(CNN) -- Newt Gingrich criticized the chairman of the joint chiefs of staff for characterizing Iran as a "rational actor" in international affairs and defending the possibility of preventing an Israeli attack on Iranian nuclear sites, during Wednesday night's Republican candidates debate hosted by CNN and the Republican Party of Arizona.
The statement: "The fact is this is a dictator, Ahmadinejad, who has said he doesn't believe the Holocaust existed. This is a dictator who said he wants to eliminate Israel from the face of the Earth. This is a dictator who said he wants to drive the United States out of the Middle East. I'm inclined to believe dictators ... If you think a madman is about to have nuclear weapons, and you think that madman is going to use those nuclear weapons, then you have an absolute moral obligation to defend the lives of your people by eliminating the capacity to get nuclear weapons." -- Former House Speaker Newt Gingrich, during Wednesday night's GOP presidential debate.
The facts: Gingrich gives a fairly accurate summary of Ahmadinejad's greatest hits. The Iranian president, now in his second term, has indeed questioned the existence of the Holocaust, the genocidal Nazi campaign against European Jews, and talked about seeing the destruction of the state of Israel.
There's one catch, though: According to U.S. intelligence agencies, Ahmadinejad isn't the guy who would be making any decisions about whether to build nuclear weapons. They say that authority belongs to the Islamic republic's supreme leader, the Ayatollah Ali Khamenei.
James Clapper, the U.S. director of national intelligence, told a Senate committee last week that any Iranian decision to build nuclear weapons "would be made by the supreme leader himself, and he would base that on a cost-benefit analysis."
Meanwhile, since winning a second term in Iran's hotly disputed 2009 presidential election, analysts say Ahmadinejad has been on the losing end of a power struggle with Khamenei's allies. And Iran's economy is being squeezed by international sanctions over its refusal to halt its nuclear fuel production and demonstrate the peaceful intentions of its nuclear program.
Tehran insists that it is enriching nuclear fuel only for civilian reactors. But in November, the International Atomic Energy Agency said it believed Iran had carried out some weapons-related research, and the agency says it's up to Iran to demonstrate that its nuclear program remains peaceful.
The verdict: Misleading. While Ahmadinejad's colorful public language has led to him being characterized as a "madman" in the West, as Gingrich put it, he's not believed to be the man who would make the critical decision about whether the Islamic republic would pursue the bomb.
CNN's Matt Smith contributed to this report.